Discussion
In humid areas, ............... accelerates stream erosion.
Answer: D
Steep gradients accelerate stream erosion.
A stream's ability to erode depends on its velocity and energy, and velocity rises with the slope of the channel. On a steep gradient, typically in the upper course, water flows fast and erodes vertically, cutting V-shaped valleys, gorges and waterfalls.
Flat flood plains and natural levees belong to the lower course, where the gradient is gentle, velocity falls, and the river deposits rather than erodes; levees are themselves depositional features. Stream flow is simply the presence of moving water; it is the steepness that speeds the erosion.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development